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CAF to M4A - Online Audio Converter
Convert CAF to M4A online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert CAF to M4A
Drop CAF audio here or click to select
CAF
M4A (AAC)
About CAF to M4A
Convert CAF to M4A. CAF is Apple's 64-bit container for large recordings beyond WAV limits. M4A is the MPEG-4 audio container usually holding AAC or ALAC. Check whether the track is AAC or ALAC before picking settings..
Why convert CAF to M4A?
- Smaller files with M4A lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
CAF vs M4A
| Codec | PCM 16-bit | AAC |
|---|---|---|
| Compression | uncompressed | lossy |
| Sample behavior | Full quality kept | Quality set by bitrate |
| Typical use | CAF is Apple's 64-bit container for large recordings beyond WAV limits. | M4A is the MPEG-4 audio container usually holding AAC or ALAC. |
When not to convert CAF to M4A
- Skip M4A for archival masters: lossy compression discards detail, so keep the CAF original.
- Keep a master copy: repeated exports stack small losses, so archive CAF before batch M4A shares.
Limits
Starting point: CAF - CAF is Apple's 64-bit container for large recordings beyond WAV limits. Few Windows tools open it; convert WAV for sharing. Check whether the track is AAC or ALAC before picking settings. Encode M4A (AAC) from CAF at 256k for music or 128k for speech, starting from the master.
How conversion works
Conversion runs entirely in your browser with FFmpeg WASM. Files never leave your device.
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FAQ
How do I convert CAF to M4A?
Drop your CAF file onto this page, choose quality and codec settings, then click Convert. The result downloads as M4A instantly. All processing runs in your browser.
What codec is used for M4A?
The default codec for M4A is AAC. You can change audio parameters in Advanced mode.
How do you store my files?
We do not store any processed audio. All conversion happens entirely in your browser using FFmpeg WASM.